Finding the Fourth Proportional to 2,158,058.59, 2,978,121.14 and 1,191,189.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,058.59 : 2,978,121.14 = 1,191,189.23 : x
2. Step 2: Convert to fraction form
   2,158,058.59/2,978,121.14 = 1,191,189.23/x
3. Step 3: Cross multiply
   2,158,058.59x = 2,978,121.14 × 1,191,189.23
4. Step 4: Simplify right side
   2,158,058.59x = 3,547,505,827,603.32
5. Step 5: Solve for x
   x = 3,547,505,827,603.32/2,158,058.59
6. Step 6: Final answer
   x = 1,643,841.30